package com.lmsservice.config;



import com.lmsservice.common.JacksonObjectMapper;
import com.lmsservice.interceptor.LoginInterceptor;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/static/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/static/front/");
    }

    //扩展mvc的转换器
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {

        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用jackson将Java对象转为json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的信息转换器对象追加到mvc框架的转换器集合中
        converters.add(0,messageConverter);
    }

    //拦截器
    @Override
    protected void addInterceptors(InterceptorRegistry registry) {
//        registry.addInterceptor(new MyInterceptor()).addPathPatterns("/**").excludePathPatterns("/employee/login",
//                "/employee/logout",
//                "/backend/**",
//                "/front/**");
        registry.addInterceptor(new LoginInterceptor()).addPathPatterns("/**").excludePathPatterns("/user/login","/user/logout","/user/register","/common/download","/backend/**","/favicon.ico");    }
}
